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Axial-flow fan

An axial flow fan and axis technology, which is applied in the field of axial flow fans, can solve problems such as affecting the reliability of the fan, poor heat dissipation effect of the motor, and increasing the temperature of the motor.

Pending Publication Date: 2018-11-06
ZHUZHOU LINCE GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional motor cooling scheme is: the cooling air generated by the axial flow fan flows through the outer surface of the motor and takes away the heat generated by the motor. However, the cooling effect of this scheme is poor, and the temperature rise of the motor is high, which affects the reliability of the fan.
[0005] In summary, there is an urgent need for an axial flow fan that can solve the poor heat dissipation effect of the motor to solve the problems in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] see Figure 1-5 , an axial flow fan, especially suitable for the axial flow fan used in the braking resistance of mining vehicles, including a motor 3 and an impeller part, the impeller part includes an outer impeller and an inner impeller, and the outer impeller and the inner impeller are both provided with On the output shaft of the motor 3, the motor 3 drives the outer impeller to rotate to realize the cooling of the external parts by the axial flow fan, and the motor 3 drives the inner impeller to rotate to realize the internal heat dissipation of the axial flow fan itself.

[0039] The end of the motor 3 provided with the inner impeller is provided with an air inlet, and the end of the motor 3 away from the inner impeller is provided with an air outlet 6, and the air outlet 6 is evenly distributed at intervals where the motor 3 is far away from the inner impeller. On the arc surface at one end; the airflow (cooling air) that the inner impeller rotates to dissipate ...

Embodiment 2

[0058] see Image 6 , the present embodiment changes the structure of the right impeller 5 on the basis of embodiment 1, the right impeller 5 only includes the right hub 5.2, the second blade 5.3 and the wheel core 5.4; the right impeller 5 is not in the external output airflow in this implementation ; The right impeller 5 only radiates heat to the internal motor 3 of the axial flow fan. The axial flow fan dissipates heat to the braking resistor through the left impeller 1 arranged on the left output shaft of the motor 3 .

[0059] The axial flow fan in this embodiment is provided with the left impeller 1 to dissipate heat from external components, and the right impeller 5 including only the right hub 5.2, the second blade 5.3 and the wheel core 5.4 is provided to dissipate heat to the inside of the motor 3; the left impeller 1 and the right impeller 5 have a clear division of labor, and the cooperation between the two can well meet the heat dissipation requirements of the ex...

Embodiment 3

[0061] see Figure 7 , present embodiment removes described left impeller 1 on the basis of embodiment 1, and described motor 3 is only provided with right output shaft; The output shaft on the right side of motor 3 is provided with right impeller 5, and described right impeller 5 rotates It can realize the heat dissipation of the braking resistor and the heat dissipation inside the motor 3 at the same time.

[0062] In this embodiment, only the right impeller 5 is provided, and the right impeller 5 integrates the functions of cooling the interior of the motor 3 and cooling external components; The axial fan of the embodiment has higher practicability.

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PUM

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Abstract

The invention provides an axial-flow fan. The axial-flow fan comprises a motor and an impeller part, wherein the impeller part comprises an outer impeller and an inner impeller; both the outer impeller and the inner impeller are arranged on the output shaft of the motor; the motor drives the outer impeller to rotate, so that the axial-flow fan performs heat dissipation on an outer part; the motordrives the inner impeller to rotate, so that internal heat dissipation for the axial-flow fan is realized; one end, with the inner impeller, of the motor is equipped with a gas-flow inlet; one end, away from the inner impeller, of the motor is equipped with a gas-flow outlet; and gas flow generated when the inner impeller rotates for dissipating heat of the inner part of the motor enters the motorthrough the gas-flow inlet, and is discharged through the gas-flow outlet. With the adoption of the technical scheme adopted by the invention, the axial-flow fan has the effects that: the axial-flowfan is simple and compact in structure, and is high in practicability while coping with a rigorous mounting environment; and the axial-flow fan adopts the inner impeller to do work for dissipating heat for the inner motor, so that the heat dissipation effect of the axial-flow fan is superior to that of a conventional motor heat dissipation way.

Description

technical field [0001] The invention relates to the technical field of fans, in particular to an axial flow fan. Background technique [0002] Mining vehicles are widely used in mining on the plateau in western my country, and their application environment is very harsh. The role of the braking resistor of the mine car is to provide braking force for the mine car when going downhill, and the heat is very large. Because the axial flow fan has the advantages of simple structure and large air volume, the braking resistor of the mining car usually uses an axial flow fan for heat dissipation. [0003] Generally, the axial flow fan is composed of motor, impeller, fan cylinder and other components. Usually, the axial flow fan can only deliver cooling air in one direction. Installing multiple axial flow fans on a mine car with a narrow space to dissipate heat from the braking resistor is not conducive to maximizing the use of space. [0004] In addition, while the axial flow fan ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/08F04D29/58F04D29/54F04D29/32
CPCF04D25/082F04D29/325F04D29/541F04D29/5806F04D29/582
Inventor 成毅李昌奇陈朝晖颜建田卢亮
Owner ZHUZHOU LINCE GRP
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